• World running out of fresh water: NASA data

    Two new studies using data from NASA Gravity Recovery and Climate Experiment (GRACE) satellites show that human consumption is rapidly draining some of the world’s largest groundwater basins, yet there is little to no accurate data about how much water remains in them. This means that the world’s largest underground aquifers, on which hundreds of millions of people rely for fresh water, are being depleted at an accelerated rate – a rate of depletion which has pushed these aquifers beyond their sustainability tipping points: During the 10-year study period, more water was removed than replaced.

  • Bacteria may help clean groundwater contaminated by uranium ore processing

    A strain of bacteria that “breathes” uranium may hold the key to cleaning up polluted groundwater at sites where uranium ore was processed to make nuclear weapons. The bacterium can breathe either oxygen or uranium to drive the chemical reactions that provide life-giving energy. Scientists had previously witnessed decreasing concentrations of uranium in groundwater when iron-breathing bacteria were active.

  • Inexpensive process to clean water in developing nations

    Lack of potable water is a huge problem in many developing countries. According to UNICEF, 783 million people worldwide are without improved drinking water, and the World Health Organization estimates that lack of proper drinking water causes 1.6 million deaths each year from diarrheal and parasitic diseases. Part of the problem is that many of these countries must import expensive chemicals to clarify the water, limiting the amount they can afford to produce. What would happen if a common tree had the potential to turn cloudy, contaminated water into clean, safe drinking water for millions in need? Researchers are hoping to find out using the seeds of the Moringa oleifera tree.

  • NOAA’s new National Water Center will bolster U.S. ability to manage threats to water security

    The National Water Center, a new facility located at the University of Alabama, aims to become an incubator for innovative breakthroughs in water prediction products and services. As the country becomes more vulnerable to water-related events, from drought to flooding, the predictive science and services developed by NOAA and its partners at the National Water Center will bolster the U.S. ability to manage threats to its finite water resources and mitigate impacts to communities. Bringing experts together in this new collaborative center provides an unprecedented opportunity to improve federal coordination in the water sector to address twenty-first century water resource challenges, such as water security, and analysis and prediction of hydrologic extremes, like droughts and floods.

  • ISIS closes gates on Ramadi dam, cutting off water to towns loyal to Baghdad

    Global security analysts have warned for some time now that water scarcity due to climate change will be used as a tool of war in regions with poor governance. The on-going wars in Iraq and Syria provide the first examples of the strategic and tactical use of water as a tool of war, as militant groups operating in both countries – and, in Syria, to government of Bashar al-Assad — have been using the denial of water as a tool against areas and populations they regard as hostile. Last month ISIS militants captured a dam on the Euphrates River to the north of the Iraqi city of Ramadi, and last week they began closing most of its gates, cutting water supplies to pro-government towns and villages downstream.

  • Water security key to unlocking African prosperity

    There is mounting evidence of the risks posed by water scarcity to business and economic growth. A 2012 projection by the International Food Policy Research Institute says 45 percent of total GDP — $63 trillion — will be at risk due to water stress by 2050. With coordinated action, better water provision in Africa will strengthen economic growth and unlock the path to prosperity for millions, according to SABMiller’s Chief Executive Alan Clark.

  • California’s agriculture feels pain of harsh drought

    The California drought is expected to be worse for the state’s agricultural economy this year because of reduced water availability, according to a new study. Farmers will have 2.7 million acre-feet less surface water than they would in a normal water year — about a 33 percent loss of water supply, on average. Reduced availability of water will cause farmers to fallow roughly 560,000 acres, or 6 to 7 percent of California’s average annual irrigated cropland. The drought is estimated to cause direct costs of $1.8 billion — about 4 percent of California’s $45 billion agricultural economy. When the spillover effect of agriculture on the state’s other economic sectors is calculated, the total cost of this year’s drought on California’s economy is $2.7 billion and the loss of about 18,600 full- and part-time jobs.

  • Summer tropical storms do not alleviate drought conditions

    Popular opinion says that tropical storms and hurricanes that make landfall mitigate droughts in the southeastern United States. This simply is not true, according to researchers. According to a NOAA report, 37.4 percent of the contiguous United States was experiencing moderate drought at the end of April – but “The perception that land-falling tropical cyclones serve to replenish the terrestrial water sources in many of the small watersheds in the southeastern U.S. seems to be a myth,” says one of the researchers.

  • Winners and losers in California’s water crisis

    A recent article highlights the widening gap of inequality between the wealthy and the poor of California, specifically in relation to the State’s current drought. The authors discuss what has caused these inequalities to expand — the outdated and unsupervised water regulations still currently used, combined with decentralized local control means using and sourcing water comes down to the simple matter of what people can and cannot afford.

  • New EPA rules extend Clean Water Act protection to more streams, wetlands

    Aiming to clarify the ambiguities of the federal Clean Water Act, the Environmental Protection Agency (EPA) last week issued a new ruling which take a tougher approach to the protection of streams and wetlands which support wildlife habitats and filter drinking water supplies. EPA officials have warned that up to 60 percent of the streams and millions of acres of wetlands in the United States are not protected under current law. The new regulations would bring these streams and wetlands under the protection of the Clean Water Act.

  • Warming amplifying adverse effects of California’s historic drought

    Although record low precipitation has been the main driver of one of the worst droughts in California history, abnormally high temperatures have also played an important role in, according to a recent study by the U.S. Geological Survey and university partners. Experiments with a hydrologic model for the period October 2013-September 2014 showed that if the air temperatures had been cooler, similar to the 1916-2012 average, there would have been an 86 percent chance that the winter snowpack would have been greater, the spring-summer runoff higher, and the spring-summer soil moisture deficits smaller.

  • Himalayas glaciers volume to decline dramatically, affecting region’s water supply

    Glaciers in High Mountain Asia, a region that includes the Himalayas, contain the largest volume of ice outside the polar regions. If greenhouse-gas emissions continue to rise, glaciers in the Everest region of the Himalayas could experience dramatic change in the decades to come – and may decline by between 70 percent and 99 percent by 2100. Changes in glacier volume can impact the availability of water, with consequences for agriculture and hydropower generation. While increased glacier melt initially increases water flows, ongoing retreat leads to reduced meltwater from the glaciers during the warmer months. “The signal of future glacier change in the region is clear: continued and possibly accelerated mass loss from glaciers is likely given the projected increase in temperatures,” says a researcher.

  • California group blames immigrants for state’s historic drought

    Californians for Population Stabilization (CAPS), an anti-immigration environmentalist group, has made a splash with provocative advertisements which feature a young child asking, “If Californians are having fewer children, why isn’t there enough water?” The ad is part of a broader media campaign by the organization which blames immigrant populations for the historic drought in the state. CAPS is calling for stricter enforcement of immigration laws on environmental grounds: it argues that the state’s natural resources cannot sustain the high levels immigration-driven population growth of recent decades. Drought experts and climatologists dismiss CAPS’s claims about the connection between immigration and drought as laughable.

  • Remote project a proof of concept for eco-friendly desalination

    In the past water desalination has been identified with industrial-scale, energy hungry plants, but researchers working at a remote indigenous community in Western Australia have proved portable, solar-powered desalination can provide cost-effective water security for a small community.

  • How climate change is making California’s epic drought worse

    California is undergoing a record-setting drought that began in 2012, the worst in at least 1,200 years. California and other southwestern states have suffered through multi-year droughts in the past, but how does climate change figure into what’s happening now? Can scientists separate the effect of rising greenhouse gas levels on the current drought from other factors? Detecting and attributing observed or projected impacts to man-caused climate change is not an easy task. But there is some supporting evidence from improving numerical climate models and the record of several diverse meteorological and hydrological events already happening, including heat waves, flooding, or droughts. Scientists can run climate model experiments that include only natural variability and then include manmade factors, such as greenhouse gases. These tools serve to highlight and distinguish the dominant mechanisms responsible for particular air circulation characteristics. These climate model simulations show that the extreme and persistent circulation patterns that have caused droughts on the West Coast this century are due to anthropogenic external forces, not natural causes. Studies suggest that climate change might give rise to a new climate regime, one in which the years of low precipitation will be accompanied by warm conditions, creating the aforementioned “warm drought.”